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444bbd4fa7
We detect for non-string and non-buffer values in onread and turn the stream into an "objectMode" stream. If we are in "objectMode" mode then howMuchToRead will always return 1, state.length will always have 1 appended to it when there is a new item and fromList always takes the first value from the list. This means that for object streams, the n in read(n) is ignored and read() will always return a single value Fixed a bug with unpipe where the pipe would break because the flowing state was not reset to false. Fixed a bug with sync cb(null, null) in _read which would forget to end the readable stream
121 lines
3.2 KiB
JavaScript
121 lines
3.2 KiB
JavaScript
// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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var assert = require('assert');
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var common = require('../common.js');
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var fromList = require('_stream_readable')._fromList;
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// tiny node-tap lookalike.
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var tests = [];
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var count = 0;
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function test(name, fn) {
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count++;
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tests.push([name, fn]);
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}
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function run() {
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var next = tests.shift();
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if (!next)
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return console.error('ok');
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var name = next[0];
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var fn = next[1];
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console.log('# %s', name);
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fn({
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same: assert.deepEqual,
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equal: assert.equal,
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end: function () {
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count--;
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run();
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}
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});
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}
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// ensure all tests have run
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process.on("exit", function () {
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assert.equal(count, 0);
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});
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process.nextTick(run);
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test('buffers', function(t) {
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// have a length
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var len = 16;
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var list = [ new Buffer('foog'),
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new Buffer('bark'),
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new Buffer('bazy'),
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new Buffer('kuel') ];
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// read more than the first element.
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var ret = fromList(6, { buffer: list, length: 16 });
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t.equal(ret.toString(), 'foogba');
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// read exactly the first element.
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ret = fromList(2, { buffer: list, length: 10 });
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t.equal(ret.toString(), 'rk');
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// read less than the first element.
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ret = fromList(2, { buffer: list, length: 8 });
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t.equal(ret.toString(), 'ba');
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// read more than we have.
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ret = fromList(100, { buffer: list, length: 6 });
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t.equal(ret.toString(), 'zykuel');
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// all consumed.
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t.same(list, []);
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t.end();
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});
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test('strings', function(t) {
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// have a length
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var len = 16;
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var list = [ 'foog',
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'bark',
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'bazy',
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'kuel' ];
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// read more than the first element.
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var ret = fromList(6, { buffer: list, length: 16, decoder: true });
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t.equal(ret, 'foogba');
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// read exactly the first element.
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ret = fromList(2, { buffer: list, length: 10, decoder: true });
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t.equal(ret, 'rk');
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// read less than the first element.
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ret = fromList(2, { buffer: list, length: 8, decoder: true });
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t.equal(ret, 'ba');
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// read more than we have.
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ret = fromList(100, { buffer: list, length: 6, decoder: true });
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t.equal(ret, 'zykuel');
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// all consumed.
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t.same(list, []);
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t.end();
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});
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